Cameron Diaz's sex scenes were guarded

Cameron Diaz made sure her love scenes for a new movie were well-concealed from the eyes of the public as it was taking place.

The actress shot a sex scene with actor Javier Bardem for 'The Counselor' on the bonnet of a yellow Ferrari at Stoke Park golf course, Buckinghamshire, United Kingdom.

And an ex-SAS squad and dog unit were apparently carefully positioned around the course and in the trees to ensure passers-by or fans could see what was going on.

Modesty screens were also put up around the set for the midnight shoot on Tuesday (11.09.12).

A source told The Sun newspaper: ''It was like a military operation. Producers had thought of everything to stop any intruders possibly getting a glimpse.''

Cameron also beds a cheetah in her new film.

She plays a character who keeps one of the big cats as a pet and had to tame the beast she was to act alongside.

An insider said: ''When Cameron first started working with the cheetah it was strutting about like it owned the place. But now she's wearing the trousers.

''It has taken a shine to her, which is good because they've had to shoot a number of scenes together, including a set-up where they shared a bed.''